CN204924280U

CN204924280U - Corn drill fertilization monitor

Info

Publication number: CN204924280U
Application number: CN201520467079.9U
Authority: CN
Inventors: 马秀莲; 任守华; 王大可
Original assignee: Heilongjiang Bayi Agricultural University
Current assignee: Heilongjiang Bayi Agricultural University
Priority date: 2015-07-02
Filing date: 2015-07-02
Publication date: 2015-12-30
Anticipated expiration: 2025-07-02

Abstract

The utility model discloses a corn drill fertilization monitor belongs to agricultural machine intelligent monitoring field. It includes that embedded industrial computer, singlechip, weighing sensor, inductance type proximity switch and wireless communication module constitute. The system adopts weighing sensor to detect fertile incasement chemical fertilizer situation of change, calculates total rate of fertilizer application according to the reduction of fertile incasement chemical fertilizer, obtains the actual reduction of fertilizer, has overcome method such as photoelectric method and can only detect out fertilizer and whether have a disconnected line, unablely goes up the accurate fertilization total amount of holding from the volume to it reports to the police to judge the fertile case evacuation condition through the empty van limit, inductance proximity switch detects and arranges fertile pipe operating condition, can realize monitoring alone row fertile each passageway of pipe, realizes the empty stifled condition of fertile pipe and reports to the police. This monitoring system simple structure has reliability height, simple and convenient economy, easy maintenance, antipollution and can realize online non -contact measurement.

Description

Corn drill fertilising monitor

Technical field

The utility model belongs to agricultural machinery Study On Intelligent Monitoring Techniques field, is specifically related to corn drill fertilization monitoring device.

Background technology

Corn drill is a kind of large-scale agricultural machinery, locomotive shunting speed is high, sown scope is wide, the flow process of its chemical fertilizer when applying fertilizer operation has been totally enclosed, its operation quality cannot be directly monitored with the vision of people and the sense of hearing, and manufacturability fault all can cause a line or number row normally to apply fertilizer causes disconnected bar, leakage is executed the phenomenon such as fertile case emptying, the fertile pipe foreign material blocking occurred when applying fertilizer operation, defertilizing box fault, fertilizer expelling shaft transmission be malfunctioning, thus cause the agriculture underproduction.Because maize drill generally uses when establishing in large scale, when occur sowing fertilizer deficiency make chemical fertilizer break bar time, be difficult to by Timeliness coverage, be also difficult to benefit and execute.In order to address this is that, usually when kind of value by manually following supervision, and benefit is executed at any time, but, the method that this supervision and benefit are executed needs to use more operating personnel, and mends to execute and more difficultly reach even, therefore, how to make corn drill not occur when kind of value the disconnected bar that applies fertilizer, avoid crop production reduction to be one of problem of always studying of this area.At present, what agriculturally fertilizer electronic monitor adopted mostly is photoelectric method, namely photoelectric sensor is utilized to convert the chemical fertilizer situation of flowing to pulse signal, pulse signals carries out amplifying, shaping, filtering, the TTL signal that generation can be received by single-chip microcomputer, the method is vulnerable to the impact of field dust earth, thus the performance of impact monitoring.

Summary of the invention

The purpose of this utility model is exactly for above-mentioned prior art Problems existing, have developed a kind of corn drill fertilising monitor.

The technical solution that the utility model adopts is: its hardware configuration of corn drill fertilising monitor is divided into host computer and slave computer two parts:

(1) epigynous computer section is made up of built-in industrial control machine and wireless communication module, host computer is whole monitor monitors center, is responsible for providing monitor user interface, sends and receive various signal, calculate and display rate of fertilizer application, realize the stifled situation of fertile case emptying, fertile pipe sky and report to the police.

(2) slave computer part is made up of single-chip microcomputer, LOAD CELLS, inductance approach switch and wireless communication module, corn drill fertilising operation simulating signal and digital signal acquiring are responsible for, and monitoring kind of case is emptying, the stifled situation of kind pipe sky, and the data after process are sent to host computer by wireless communication module.

The technique effect of utility model is: adopt LOAD CELLS in conjunction with inductance approach switch Real-Time Monitoring corn drill fertilising handling situations herein.LOAD CELLS detects chemical fertilizer situation of change in fertile case, total rate of fertilizer application is calculated according to the reduction of chemical fertilizer in fertile case, monitor adopts LOAD CELLS to sample to the fertilizer in fertile case, obtain the actual reduction of fertilizer, overcome the methods such as photoelectric method and can only detect whether fertilizer has line-break, amount, accurately cannot hold total fertilization amount, and judge that the emptying situation of fertile case is reported to the police by empty van limit; Inductive proximity switches detects defertilizing tube job state, can realize monitoring separately each passage of defertilizing tube, realizes the stifled situation of fertile pipe sky and reports to the police.This monitor structure is simple, has high, the easy economy of reliability, easy care, antipollution and can realize online non-cpntact measurement.

Accompanying drawing explanation

Accompanying drawing is the utility model example structure schematic diagram.

Embodiment

This monitor hardware configuration is made up of host computer built-in industrial control machine, LOAD CELLS, inductance approach switch, slave computer AT89S52 single-chip microcomputer and wireless communication module.Each module embodiment is as follows:

1. host computer

Built-in industrial control machine is the input of DW-101TPC-B3,12V direct current, Overall Power Consumption 20W, machine prepackage WinowsXP, good stability, work of can starting shooting for a long time.Host computer is arranged in corn drill pilothouse.Monitor user interface is provided, sends and receive various signal instruction, realize seeder calculation of fertilization amount and display, realize the stifled sound and light alarm of fertile case emptying, fertile pipe sky.

2. wireless communication module

Wireless communication module adopts XL4432 ?D01, and it is the complete radio receiving transmitting module of one piece of compact, low-power consumption.It has the advantages such as antijamming capability is strong, low-power consumption, long transmission distance, and in monitor, wireless communication module is used for receiving and sending two kinds of modes.When being connected with built-in industrial control machine and single-chip microcomputer by USB interface, wireless communication module connecting VDD-to-VSS line for module provides electric energy, and also RXD will be connected with the TXD of terminal device, TXD is connected with the RXD of terminal device, ensures reception and the transmission of data.

3. slave computer

Single-chip microcomputer adopts STC12C5A08S2 chip as the control core of slave computer, primary responsibility completes corn drill fertilising operation simulating signal and digital signal acquiring, and monitoring kind of case is emptying, the stifled situation of kind pipe sky, and the data after process are sent to host computer by wireless communication module.This chip has 1 clock/machine cycle, and at a high speed, highly reliable, 8 10, tunnel high-speed a/ds conversions, operating voltage is between 5.5-3.3V.It has double-serial port, achieves and communication requirement between host computer and slave computer.

4. LOAD CELLS

Resistance strain weighing transducer selected by this monitor, and its precision is high, stable and reliable for performance, structure is simple, volume is little and cheap, is made up of pressure responsive device, resistance strain gage and Hui Sideng metering circuit three part.The signal gathered due to steady sensor is simulating signal, and single-chip microcomputer reception is digital signal.Therefore, between LOAD CELLS and single-chip microcomputer, add the MAX4460 amplifier of gain bandwidth (GB) DALLAS company and the MAXlll6 analog-digital chip of 8 that one has high-accuracy, low-power consumption and excellence, simulating signal sends a machine to do further data processing by the load mode of radio communication after amplifying conversion.Be arranged in fertile case during use, when seeder fertilising operation, LOAD CELLS detects chemical fertilizer situation of change in fertile case, calculates total rate of fertilizer application according to the reduction of chemical fertilizer in fertile case, and judges that the emptying situation of fertile case is reported to the police by empty van limit.

5. inductance approach switch

LJ18A3-8-Z/BY open type inductance approach switch selected by this monitor, and it is a kind of position transducer with output switch parameter, and during use, proximity switch and stretch metal plate form capacitor.Stretch metal plate is used to be arranged in defertilizing tube, proximity switch is arranged on outside defertilizing tube, when the chemical fertilizer impact stretch metal plate flowed, the DIELECTRIC CONSTANT ε of stretch metal plate and proximity switch changes, equivalent capacity is change and then, thus the circuit state be connected with measuring head is also changed thereupon, constantly produces pulse, and pass to host computer by slave computer, realize the stifled monitoring of sky of defertilizing tube.

The utility model has following functions:

(1) reduction that slave computer detects chemical fertilizer in fertile case by LOAD CELLS calculates total rate of fertilizer application, passes to host computer by radio communication, realizes total fertilization amount and calculates and display;

(2) the emptying warning of fertile case is judged according to fertile case empty van limit value;

(3) slave computer inductance approach switch monitoring defertilizing tube handling situations, passes to host computer by radio communication, realizes the stifled warning of fertile pipe sky.

Claims

1. corn drill fertilising monitor, is characterized in that: hardware system structure is divided into host computer and slave computer two parts:

(1) epigynous computer section is made up of built-in industrial control machine and wireless communication module, host computer is monitor monitors center, is responsible for providing system user interface, sends and receive various signal, calculate and display rate of fertilizer application, realize the stifled situation of fertile case emptying, fertile pipe sky and report to the police;

2. corn drill fertilising monitor as claimed in claim 1, it is characterized in that: built-in industrial control machine is DW-101TPC-B3,12V direct current inputs, Overall Power Consumption 20W, machine prepackage WinowsXP, host computer is arranged in corn drill pilothouse, system user interface is provided, send and receive various signal instruction, realizing seeder calculation of fertilization amount and display, realizing the stifled sound and light alarm of fertile case emptying, fertile pipe sky.

3. corn drill fertilising monitor as claimed in claim 1, it is characterized in that: wireless communication module adopt XL4432 ?D01, wireless communication module is used for receiving and sending two kinds of modes, when being connected with built-in industrial control machine and single-chip microcomputer by USB interface, wireless communication module connecting VDD-to-VSS line for module provides electric energy, also RXD will be connected with the TXD of terminal device, TXD is connected with the RXD of terminal device, ensures reception and the transmission of data.

4. corn drill fertilising monitor as claimed in claim 1, it is characterized in that: single-chip microcomputer adopts STC12C5A08S2 chip as the control core of slave computer, primary responsibility completes corn drill fertilising operation simulating signal and digital signal acquiring, and monitoring kind of case is emptying, the stifled situation of kind pipe sky, and the data after process are sent to host computer by wireless communication module; This chip has 1 clock/machine cycle, 8 10, tunnel high-speed a/d conversions, and operating voltage is between 5.5-3.3V;

It has double-serial port, achieves and communication requirement between host computer and slave computer.

5. corn drill fertilising monitor as claimed in claim 1, is characterized in that: resistance strain weighing transducer selected by monitor, is made up of pressure responsive device, resistance strain gage and Hui Sideng metering circuit three part; The signal gathered due to steady sensor is simulating signal, and single-chip microcomputer reception is digital signal; Therefore, between LOAD CELLS and single-chip microcomputer, add the MAX4460 amplifier of gain bandwidth (GB) DALLAS company and the MAXlll6 analog-digital chip of 8 that one has high-accuracy, low-power consumption and excellence, simulating signal sends a machine to do further data processing by the load mode of radio communication after amplifying conversion; Be arranged in fertile case during use, when seeder fertilising operation, LOAD CELLS detects chemical fertilizer situation of change in fertile case, calculates total rate of fertilizer application according to the reduction of chemical fertilizer in fertile case, and judges that the emptying situation of fertile case is reported to the police by empty van limit.

6. corn drill fertilising monitor as claimed in claim 1, it is characterized in that: LJ18A3-8-Z/BY open type inductance approach switch selected by monitor, it is a kind of position transducer with output switch parameter, and during use, proximity switch and stretch metal plate form capacitor; Stretch metal plate is used to be arranged in defertilizing tube, proximity switch is arranged on outside defertilizing tube, when the chemical fertilizer impact stretch metal plate flowed, the DIELECTRIC CONSTANT ε of stretch metal plate and proximity switch changes, equivalent capacity is change and then, thus the circuit state be connected with measuring head is also changed thereupon, constantly produces pulse, and pass to host computer by slave computer, realize the stifled monitoring of sky of defertilizing tube.